/Engine/Source/Developer/MaterialUtilities/Public/MaterialUtilities.h
FMaterialMergeData ( [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * InMaterial, const [FMeshDescription](API\Runtime\MeshDescription\FMeshDescription) * InMesh, const [FSkeletalMeshLODRenderData](API\Runtime\Engine\Rendering\FSkeletalMeshLODRenderData) * InLODData, int32 InMaterialIndex, FBox2D InTexcoordBounds, const [TArray](API\Runtime\Core\Containers\TArray)< FVector2D > & InTexCoords )